Spring



P. GRABLER Nov. 10, 1931.

SPRING Filed oct. 5. 1927 Snom/Nro@ @fiar zziif' means for adjustingor varying this tensional invention to the particular devices so shown Patented Nov. 1'0, 1.931'

21: Afr-ENT OFFICE PETER GRABLER, or nocxY prima, omo

sparite Application led `October 5,

My invention 'relates to ksprings generally and more particularly to forms of parts of springs and still more particularly to shock a sorbing elements on springs.

The present inventionl is distinguished from my former application Serial No.

207,913-in 'a new clamp element and the shock absorbing element integral with a part of the `spring whereas theshock absorbing element in my former application is separate and `attachable to and detachable from;

springs. v s

One of the objects yof the presentinvention is to provide springs with permanentshock absorbing means having a tensional relation to and with the springs and to v provide a relation and retain this means in position' and in adjustment. Other objects will appear, or become apparent or obvious, or will suggest themselves duringthe description of the devicesA shown inthe accompanying drawings and related remarks ,in this description.`

' I am awarethatvarious forms of springs and shock absorbing means yand clamp means as well 'as various combinations of such ele! ments can be designed ywithin the scope of the present invention. Y

In order toillustrate myinvention and "to" avoid possible confusion, I have selected one particular e structure and arrangement *and4 combination of elements or parts and have, shown the same in the accompanying drawings and will describe the saine herein in de` tail and also show in the accompanying-drawf ings one modification and will briefly defscribe'fy the same herein to indicate generally that modifications can be made and how they can, be made in one direction. However, this Vil-A lustrating and describing shall not vlimit my and described. s. Y

In the accompanying drawings n f Fig. 1 is a general perspective view otone end of a leaf spring embodying thejfeatures` ofmy invention and'havi'ng one of the leaves bent intoa shock absorbing element' superilnposedover a portion of ,andv` a s 1n such ysprings.

`1,927. .serial No. 224,131.

clamp means superimposed over the shock absorbing element and the spring.

1 `Fig. 2 is a'section taken 4in a vertical plane V"longitudinelly' through the middle of the spring of Fig. 1 and shows the longitudinal relations of the eleinents more clearly. n .Fig 3 is a section talrenina vertical transverse"plane-'through the-middle ofthe clamp vmeans of Fig. l and shows the transverse vrelation ofthe elements more clearly.

Fig. i is a general v'perspective View of a modiication of Fig. 1.

Similar reference characters refer to similar parts through the views. Y A VVIlie drawings show one endof springs; the other end may loe-formed in the sainemen- ,ne1",` or in 'a different manner, embodying features'ot my invention or otherwise, ormay be formed with the lusual or any special eye orfother supporting orattaclhing means. i

The spring A, inthe present'instancefaleafV spring, has aplur'ality ofV leaves as is'common *In the'present instance, one ofthe leaves, designated' as 10, isformed with theeye 11V extending upwardly in thisinstance and `.with 4theshoclr absorbing part l2` curved upwardly in this instance and with the toe 13 depending from the part 12 and abutting the leaf -10 Vand*superirnvposedly extending over and spaced `from a portion ofv the leaf 10 and with the ridges 14 `pressed upwardly inthe part 12 to form the channelsl'to retain the 'hereinafter described clamp element in position."

The clampelement, asshown in Figs. 1, 2 andB, comprises a U shaped element and a pin element. niadeoii sheet metal bent to form a pai-r of legs 16 having the aligned holes 17 Vthrough .the same-and further bentto form a pair of stiffening flanges 18 and furtherbent to'fform the boss `19.

The'U vshaped element B is V The pin-20,0f a diameter to pass through i the :holes 17 I and vof-a length sufficient to eX- Ttend beyond-the legs 16, hasthe grooves 21 near each Vend thereof and spaced the same distance apart as the distance :between the legs and `eta vWidth -correspondin tof the thickness of the-material aroundte holes.

the portions of thelegs adjacent to the holes The screw 22 is threaded into the boss 19 and the point or end 23 thereof abuts the leaf legs thereof align with one of the channels l5. T he pin is then inserted into and through the holes 17 until the grooves therein alignl with the material around the holes. The screw 22 is then manipulated so that the legs 'are moved downwardly, the pin remaining stationary in the channel, and thereby move therein into the grooves 2l and thereby fixedly locking the pin and the element B together. This saine screw 22 is also utilized to adjust or vary the tensional relation between the spring and the shock absorbing element by tightening or loosening the same inoi'e or less against the leaf 24. The check nut 25 retains the adjustment of the tension.

The manipulation of the screw 22 for adjust-I ing purposes does not release the lock between the pin and the member B.

The body portion of the shock absorbing" element forms a spring of itself between the eye of the spring and the toe of the element the tension of which is adjustable or variv springfitself and tliereforeabsorbs shocks i able in relation to the spring as a whole and to that portion of the spring over which the element extends.

. i The shock absorbing element shown and describedris capable of quicker action than the quicker than the spring itself could absorb them and `thereby 'eliminates or absorbs shocks which can not be eliminated or absoi-bed by the spring itself.

. made, Ido not limit myself to the precise` Since I am aware that modifications and structural changes of elements as well as changes in the arrangement and combination of the elements shown and described can be application nor structure nor arrangement nor combination of elements as shown and described and therefore, without limiting my' self thusly.

I claim l. A spring having a clamp element, a

i shock absorbing element formed with ridges Ato;l locate said -clamp element, and a screw Ythreaded into said clamp element to vary thev jtensional relation' between said springjand l lsaid shock absorbing element: and to retain said clampelementlin position.

2. A spring having a clamp element com- Leende@ piiisingaimen'iber having a pair of legs with threaded into said member and adapted to move and to retain said legs so that a portion thereof adjacent to said holes engages the corresponding one of said grooves and there by locks said pin and said member together.

qAspringliaving a clamp element comprising a member formed of sheet metal bent into a pair of legs and stiifening flanges and a boss, the endsl of said legs having aligned holes throughthe same, a pin extendable through said holes and having a groove near each end thereof, and a screw threadedinto said boss and adapted to move andto retain said legs so that a portion thereof adjacent tosaid holes engages the corresponding one of said grooves and thereby ylocks said pin and said member together.

t. A spring including a member formed with a shock absorbing element having the fnd thereof abutting endwise on said mem- 5. A leaf spring including a leaf having an end portion thereof formed into a shock absorbing elementaiid the endthereofencb wise abutting the same leaf and' nfiovable` thereon longitudinally thereof.

6. A leaf spring including a leaf having an end portion thereof V formed into a shock absorbing element exten ding overi ajportion of Vsaid leaf and the end thereof abutting endwise on said leaf and movable thereon longitudinally thereof.

-`7.'A leaf spring having a plurality of superimposed leavesthe last superimposed leaf formed with a shock absorbing element having the end thereof endwise abutting said leaf.

. superimposed over an end portion of the spring and endwise abutting the spring, and `a clamp element superimposed over a portion of the spring and over a portion of the shock absorbing element.

10. A spring having a shock absorbing element integral with a part of the spring and superimposed over an end portion of the spring and endwise abutting the spring, a clamp element superimposed over a portion f of the spring and over aportion of the shock absorbing element, and means for adjusting said clamp elementto varygthe tensional relation betweeny the spring and-the shock ab sorbinV element.

. 11. Y ment formedl on a part of the spring and superimposed lover an end portion of the spring and endwise abutting the spring and" spring-having ashock absorbing elemeans for adjusting the tensional relation between the spring and the shock absorbing element.

12. A spring having a resilient shock absorbing element formed on a part of the spring and endwise abuttin a leaf of the spring and means for adjusting the resilient and the frictional relation between the spring and the shock absorbing element.

13. A leaf spring including a leaf having a shock absorbing element integral with the same, extending over an end portion of the spring, endwise abutting the spring and the end thereof free to move longitudinally of the spring.

14. In a leaf spring, a plurality of spring leaves, one of which has end thereof designed to form an auxiliary spring bow endwise abutting a leaf of the spring, and means for placing said bow under compression to thereby yieldingly urge the end of said bow and adjacent surfaces of the spring leaves into mutually co-operating contact.

15. In a leaf spring provided with a supplemental resilient member extending from the eye of the spring and portions and an outwardly disposed noncontacting portion, one of said contacting portions abutting endwise of a leaf of the spring, and means for tightening said portions towards the spring.

16. A vehicle spring comprising laminated leaves, a clamp embracing the longer leaves adjacent the spring end, one of the leaves being bowed in the clamp from the eye of the spring inwardly thereof and abutting endwise on a leaf of the spring" and means carried by the clamp for adjusting the. tension of the bowed portion.

In testimony of the foregoing I afliX my signature.

PETER GRABLER.

an eXtenion atan Y having contacting 

